Chemistry Chapter One Question Preview (ID: 20782)
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What are the parts of an atom?
a) protons, neutrons, and electrons
b) posiative charges and negative charges
c) energy levels and electrons
d) netural and ion
What is an ion?
a) An atom that is stable
b) An atom that has beome electrically charged
c) An atom that has only 4 energy levels
d) An atom that has the same number of protons and electrons
What is a neutral atom?
a) An atom that is stable
b) An atom that has become electrically charged
c) An atom that has only 4 energy levels
d) An atom that has the same number of protons and electrons
On the Periodic Table, what do you use to find the number of protons of an element?
a) Atomic Mass Number
b) Atomic Number
c) The group number
d) The period number
What are valence electrons?
a) The number of electrons in all the energy levels combine in an atom
b) The first energy level electrons in an atom
c) The last energy level electrons in an atom
d) The electrons that are shared in covalent bonding
Where does the chemical bonding take place in an atom ?
a) In the nucleus
b) In the inner most energy level
c) With the protons and electrons of the atom
d) With the valence electrons
What is an ionic bond?
a) The attraction between 2 oppositely charged ions
b) The sharing of electrons between 2 atoms
c) The combination of metal atoms
d) The combination of 2 neutral atoms
What type of bonding is NaBr?
a) Metallic
b) Ionic
c) Covalent
d) None of the above
What does it mean when an atom is stable?
a) When the atom has the same number of protons and electrons
b) When the energy levels of an atom are complete
c) When the atom has the same number of protons and neutrons
d) When the atom bonds with another atom of the same element
How do you find the number of neutrons in an atom?
a) Use the Atomic Number of the atom
b) Use the Atomic Weight of the atom
c) Calculate the number of neutrons by the Atomic Number minus the Atomic Weight of the atom
d) Calculate the number of neutrons by adding the number of protons and electrons
How many atoms for each of the elements in the formula 2(C2Cl3)
a) There are 2 Carbons and 3 Chlorines
b) There are 4 Carbons and 5 Chlorines
c) There are 7 Carbons and Chlorines
d) Ther are 4 Carbons and 6 Chlorines
Which is NOT a property of metallic bonding?
a) malleable
b) ductile
c) conducts electricity
d) conducts electricity when dissovled in water
Which BEST describe metallic bonding?
a) ions are held together by the electron cloud that surrounds them
b) electrons move up and down the atom's energy levels
c) electrons are gained or lost during the bonding
d) ions are shared during the bonding
What is diatomic elements?
a) elements that have the same atomic number
b) elements that have the same valence electron number
c) atoms of the same element bond covalently
d) atoms of the same atomic mass that bond covalently
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